EP1382093A2 - Compact coupler plug, particularly for a planar broadband lambda probe, that is protected from dust when in a pre-locking position - Google Patents

Compact coupler plug, particularly for a planar broadband lambda probe, that is protected from dust when in a pre-locking position

Info

Publication number
EP1382093A2
EP1382093A2 EP02737784A EP02737784A EP1382093A2 EP 1382093 A2 EP1382093 A2 EP 1382093A2 EP 02737784 A EP02737784 A EP 02737784A EP 02737784 A EP02737784 A EP 02737784A EP 1382093 A2 EP1382093 A2 EP 1382093A2
Authority
EP
European Patent Office
Prior art keywords
cover element
housing
coupling plug
seal
locking position
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP02737784A
Other languages
German (de)
French (fr)
Other versions
EP1382093B1 (en
Inventor
Wolfgang Pade
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP1382093A2 publication Critical patent/EP1382093A2/en
Application granted granted Critical
Publication of EP1382093B1 publication Critical patent/EP1382093B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/66—Structural association with built-in electrical component
    • H01R13/665—Structural association with built-in electrical component with built-in electronic circuit
    • H01R13/6683—Structural association with built-in electrical component with built-in electronic circuit with built-in sensor
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
    • G01N27/26—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electrochemical variables; by using electrolysis or electrophoresis
    • G01N27/403—Cells and electrode assemblies
    • G01N27/406—Cells and probes with solid electrolytes
    • G01N27/4062—Electrical connectors associated therewith
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
    • G01N27/26—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electrochemical variables; by using electrolysis or electrophoresis
    • G01N27/403—Cells and electrode assemblies
    • G01N27/406—Cells and probes with solid electrolytes
    • G01N27/407—Cells and probes with solid electrolytes for investigating or analysing gases
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
    • G01N27/26—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electrochemical variables; by using electrolysis or electrophoresis
    • G01N27/403—Cells and electrode assemblies
    • G01N27/406—Cells and probes with solid electrolytes
    • G01N27/407—Cells and probes with solid electrolytes for investigating or analysing gases
    • G01N27/4071—Cells and probes with solid electrolytes for investigating or analysing gases using sensor elements of laminated structure
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/46—Bases; Cases
    • H01R13/52—Dustproof, splashproof, drip-proof, waterproof, or flameproof cases
    • H01R13/5213—Covers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/46—Bases; Cases
    • H01R13/533—Bases, cases made for use in extreme conditions, e.g. high temperature, radiation, vibration, corrosive environment, pressure

Definitions

  • the invention relates to a coupling plug, in particular for a planar ambda probe, consisting of a housing, namely a basic body and a cover element and electrical components which can be inserted and fixed in the housing, and a balancing element for a probe, in particular a planar one Broadband lambda probe, which is to be attached in the coupling plug or via a further contact element outside the coupling plug, whereby - the cover element can be plugged on over the balancing element and has a primary (pre-locking position) and a secondary control (end position) interacting with the cover element.
  • Coupling plugs of the above type are generally designed for the connection between a cable harness plug and a lambda probe, the connections which are provided in the coupling plug being provided for balancing, signaling and / or heating the probe.
  • the lambda probe and the lambda control in connection with the 3-way Catalyst is an effective exhaust gas purification process.
  • the lambda probe which is screwed into an exhaust system, for example, comprises a sensor for determining the oxygen content in the exhaust gas.
  • the residual oxygen content is very suitable as a measurement variable and regulates the air-fuel ratio, since this shows precisely whether the air-fuel mixture burns completely.
  • the lambda probe supplies a voltage signal that represents the instantaneous value of the mixture composition and follows the mixture changes.
  • heated or unheated probes are used.
  • the lambda probe is used outside of fuel vehicles, e.g. B. for controlling gas engines or 01 / gas burners.
  • Broadband lambda probes in particular have a modular design and, in conjunction with planar technology, allow the integration of several functions. As a rule, they have functional layers which consist of a porous protective layer, an outer electrode, a sensor film, an inner electrode, a reference air duct film, an insulation layer, a heating element, a heating film, a resistor or a trimming element and connecting contacts.
  • each probe has to be adjusted individually.
  • the probe has a built-in resistor ("Mmi hybrid").
  • the adjustment which is preferably carried out using a laser beam, is carried out in that the
  • Resistance layer which is located on a ceramic substrate, is removed accordingly, whereby a change in resistance is brought about and thus an adjustment takes place.
  • the matching unit or the resistor is arranged directly on the probe.
  • the resistor is accommodated outside, for example on a cable harness plug coupled to the probe
  • the cover element has additional seals.
  • Pressure compensation elements are also arranged on the housing of the coupling plug.
  • the seals only take on their sealing function when the cover element is locked in its end position (secondary locking).
  • the cover element is either still completely removed or it lies on the housing of the coupling plug, which has not engaged with the housing, since the cover element has to be removed again in order to adjust the adjustment element. Therefore, especially when transporting the coupling plug, there is a risk that dust, dirt or moisture penetrates into the housing and the function of the coupling plug can be impaired.
  • the object of the invention is to develop an embodiment of the coupling plug, which is provided in particular for a planar broadband lambda probe, in such a way that it can be produced very cost-effectively and the disadvantages of the prior art are avoided by the further development.
  • the solution to the problem is that a seal is provided on the cover element, which has sealing lips which point away from the cover element and which form a sealing connection with the housing when the cover element is in the locked position.
  • an essential advantage of the invention is that the coupling plug proposed here according to the invention is of a small construction, since, due to the compact design, namely the insertion of electrical contacts n a basic body and the arrangement of the balancing element also in the coupling plug, the external dimensions of the Coupling plug, which is preferably arranged between a wire harness and a lambda probe, are very small.
  • the coupling plug present here according to the invention has only a few components. This enables inexpensive and efficient production.
  • the basic body is completely surrounded by the cover element, it is possible to seal the interior of the coupling plug by arranging sealing lips within the cover element, so that it is protected in particular from dust, dirt or splash water already in the pre-locking position of the cover element.
  • a pre-locking and an end locking or a primary and a secondary locking is preferably provided.
  • This is designed in such a way that the cover element has latching arms which, when the cover is closed, rest on the base body of the coupling plug and engage there with latching lugs.
  • the sealing lips arranged on the seal running around the cover element already engage in recesses on the side of the housing and thus form protection at least against dust and dirt.
  • Another advantage of the invention is that the aforementioned seal can be molded onto the cover element so that it is arranged so that it cannot be lost.
  • the cover element advantageously consists of PBT (polybutylene terephthalate) or equivalent materials.
  • FIG. 1 shows a perspective view of the coupling plug according to the invention, with a cover element in the end position;
  • FIG. 2 shows a perspective view of the coupling plug according to the invention, without a cover element
  • FIG. 3 shows a longitudinal section through the coupling plug according to FIG. 1;
  • FIG. 4 shows a detailed illustration of FIG. 3, the function of the cover element together with the seal and sealing lips being shown in section and the cover element being in a pre-locking position;
  • Fig. 5 is a detailed view of Fig. 3, wherein the function of the cover element together with the seal and sealing lips is shown in section and the cover element is in an end position. Description of an exemplary embodiment
  • the coupling plug 1 shown in FIGS. 1 to 5 is such a plug, which consists of a housing 2, which is composed of a basic body 3 and a cover element 4.
  • a balancing unit 6 is arranged in a holding device 5, which in turn is connected via electrical contact elements 7 to the lambda probe connected via a connecting element 8 or to the one inserted via the coupling plug 1 and not shown in detail in the drawings Plug n connection is established.
  • the electrical contact elements 7 consist of metal strips shaped like a conductor track, which end with one side in the area of the coupling possibility 9 (FIG. 4) of the coupling plug 1.
  • the alignment unit 6 is guided over guide elements 10, which are largely arranged on the base body 3, and held in the correct position by the electrical contact elements 7.
  • the cover element 4 has on its inside a circumferential seal 11, which corresponds to the housing in the assembled state of the cover element 4.
  • 11 sealing lips 12 are arranged on the seal pointing away from the cover element 4. These sealing lips 12 taper towards the end.
  • the length of the sealing lips 12 is dimensioned such that when the cover element 4 is placed on the housing 2 n in the pre-latching position shown in FIG. 4, these extend into recesses 13, so that a seal of the housing 2 is produced.
  • the seal 11 and the sealing lips 12 form an integral part and are captively molded onto the inside of the cover element 4.
  • the coupling plug 1 preferably has grooves 14 on its circumference, which allow a coupling plug 1 n to be inserted into holders provided for this purpose.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Biochemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Electrochemistry (AREA)
  • Physics & Mathematics (AREA)
  • Analytical Chemistry (AREA)
  • Molecular Biology (AREA)
  • General Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Connector Housings Or Holding Contact Members (AREA)
  • Measuring Oxygen Concentration In Cells (AREA)
  • Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)

Abstract

The invention relates to a coupler plug, which is particularly provided for a planar lambda probe and which is comprised of: a housing (2), namely consisting of a base body (3) and of a cover element (4); electrical components that can be placed and fixed inside the housing, and; an adjusting element (6) for a probe, particularly a planar broadband lambda probe, that is to be placed inside the coupler plug (1) or outside the coupler plug above another contact element, whereby the cover element (4) can be attached above the adjusting element (6) and has a primary position (pre-locking position) and a secondary locking (final position) that interacts with the cover element (4). The aim of the invention is to make it possible to seal the housing off from dirt and dust when in its pre-locking position. To this end, the invention provides that a seal (11) is placed on the cover element (4). This seal has sealing lips (12), which point away from the cover element (4) and which enter into a sealing connection with the housing (2) when the cover element (4) is in the pre-locking position.

Description

Kleinbauender Kupplungsstecker, insbesondere für eine planare Breitband- Lambda-Sonde mit einem Staubschutz m einer VorraststellungSmall coupling connector, especially for a planar broadband lambda probe with dust protection in a pre-locked position
Die Erfindung betrifft einen Kupplungsstecker, insbesondere für eine planare ambda-Sonde, bestehend aus einem Gehäuse, nämlich einem Grundkorper und einem Deckelelement sowie elektrischen Bauteilen, die in das Gehäuse einlegbar und fixier- bar sind, und einem Abgleichelement für eine Sonde, insbesondere eine planare Breitband-Lambdasonde, die in dem Kupplungsstecker oder ber e n weiteres Kontaktelement ausserhalb des Kupplungssteckers anzubringen ist, wobei - das Deckelelement über dem Abgleichelement aufsteckbar ist und eine Primär- (Vorraststellung) und eine mit dem Deckelement zusammenwirkende Sekundarvemegelung (Endlage) aufweist.The invention relates to a coupling plug, in particular for a planar ambda probe, consisting of a housing, namely a basic body and a cover element and electrical components which can be inserted and fixed in the housing, and a balancing element for a probe, in particular a planar one Broadband lambda probe, which is to be attached in the coupling plug or via a further contact element outside the coupling plug, whereby - the cover element can be plugged on over the balancing element and has a primary (pre-locking position) and a secondary control (end position) interacting with the cover element.
Stand der Technik Kupplungsstecker der vorstehenden Art sind in der Regel für die Verbindung zwischen einem Kabelbaumstecker und einer Lambda-Sonden ausgebildet, wobei die Anschlüsse, die im Kupplungsstecker vorgesehen sind, für Ab- gleich, Signal und/oder Heizung der Sonde vorgesehen sind. Die Lambda- Sonde und die Lambda-Regelung stellen heute in Verbindung mit dem 3-Wege- Katalysator ein wirksames Abgasreinigungsverfahren dar. Die Lambda-Sonde, die beispielsweise in ein Abgassystem eingeschraubt wird, umfasst einen Messfuhler zur Feststellung des Sauerstoffgehalts im Abgas.PRIOR ART Coupling plugs of the above type are generally designed for the connection between a cable harness plug and a lambda probe, the connections which are provided in the coupling plug being provided for balancing, signaling and / or heating the probe. The lambda probe and the lambda control in connection with the 3-way Catalyst is an effective exhaust gas purification process. The lambda probe, which is screwed into an exhaust system, for example, comprises a sensor for determining the oxygen content in the exhaust gas.
Der Restsauerstoffgehalt eignet sich sehr gut als Messgrosse und regelt das Luft-Kraftstoff-Verhaltnis, da dieser präzise anzeigt, ob das Luft- Kraftstoff-Gemisch vollst ndig verbrennt.The residual oxygen content is very suitable as a measurement variable and regulates the air-fuel ratio, since this shows precisely whether the air-fuel mixture burns completely.
Die Lambda-Sonde liefert dabei ein Spannungssignal, das den augenblickli- chen Wert der Gemischzusammensetzung repräsentiert und den Gemischanderungen folgt. Die Kraftstoffzufuhr zum Motor wird durch eine Gem schauf- bereitungsanlage entsprechen dem Signal der Lambda-Sonde derart geregelt, das ein stochiometrisches Luft-Kraftstoff-Verhaltnis λ=l erreicht wird. Je nach Ausfuhrungen des Abgassystems und dem Einsatzbedingungen werden beheizte oder unbeheizte Sonden eingesetzt. Weitere Anwendungen findet die Lambda-Sonde ausserhalb von Kraftstoffahrzeugen, z. B. zur Regelung von Gasmotoren oder 01-/Gasbrennern.The lambda probe supplies a voltage signal that represents the instantaneous value of the mixture composition and follows the mixture changes. The fuel supply to the engine is regulated by a gem preparation system in accordance with the signal from the lambda probe in such a way that a stochiometric air-fuel ratio λ = l is achieved. Depending on the design of the exhaust system and the operating conditions, heated or unheated probes are used. The lambda probe is used outside of fuel vehicles, e.g. B. for controlling gas engines or 01 / gas burners.
Insbesondere Breitband-Lambda-Sonden s nd modular aufgebaut und erlauben in Verbindung mit der Planartechnik die Integration mehrerer Funktionen. Sie weisen in der Regel Funktionsschichten auf, die aus einer porösen Schutzschicht, aus einer Aussenelektrode, einer Sensorfolie, einer Innenelektrode, einer Referenzluftkanalfolie, einer Isolationsschicht, einem Heizelement, einer Heizfolie, einem Widerstand bzw. einem Abgleichelement und Anschlusskontakten bestehen.Broadband lambda probes in particular have a modular design and, in conjunction with planar technology, allow the integration of several functions. As a rule, they have functional layers which consist of a porous protective layer, an outer electrode, a sensor film, an inner electrode, a reference air duct film, an insulation layer, a heating element, a heating film, a resistor or a trimming element and connecting contacts.
Da die Breitband-Lambda-Sonden aus der Kombination einer Nernet- Konzentrationszelle (=Sensorzelle) mit einer Sauerstoff-Ionen transportierenden Pumpzelle besteht, kann sie nicht nur im stochiometrischen Punkt bei λ=l, sondern auch im mageren und fetten Bereich sehr exakt messen.Since the broadband lambda probes consist of a combination of a Nernet concentration cell (= sensor cell) with a pump cell that transports oxygen ions, it can measure very precisely not only in the stochiometric point at λ = 1, but also in the lean and rich range.
Jede Sonde ist individuell abzugleichen. Hierzu weist die Sonde einen eingebauten Widerstand ( "Mmi-Hybrid") auf. Der Abgleich, der vorzugswei- se mittels einem Laserstrahl erfolgt, wird dadurch ausgeführt, dass dieEach probe has to be adjusted individually. For this purpose, the probe has a built-in resistor ("Mmi hybrid"). The adjustment, which is preferably carried out using a laser beam, is carried out in that the
Widerstandsschicht, die sich auf einem Keramiksubstrat befindet, entsprechend abgetragen wird, wodurch eine Widerstandsanderung herbeigeführt wird und damit ein Abgleich erfolgt. Eine Ausfuhrungsform besteht darin, dass die Abgleichemheit bzw. der Widerstand unmittelbar an der Sonde angeordnet ist. Ein weiteres Ausfuh- rungsbeispiel besteht darin, dass der Widerstand ausserhalb, beispiels- weise an einem mit der Sonde gekoppeltem Kabelbaumstecker untergebrachtResistance layer, which is located on a ceramic substrate, is removed accordingly, whereby a change in resistance is brought about and thus an adjustment takes place. One embodiment is that the matching unit or the resistor is arranged directly on the probe. Another exemplary embodiment is that the resistor is accommodated outside, for example on a cable harness plug coupled to the probe
Bisher erfolgt der Abgleich dadurch, dass das Gehäuse des Kupplungsstek- kers, in dem der Widerstand eingebaut ist, ohne das Deckelelement zur Abgleichstelle transportiert wird. Nach der entsprechenden Laserbearbeitung für den Abgleich wurde dann im Anschluss an einer weiteren Montagestelle das Deckelelement aufgesteckt.Up to now, the adjustment has taken place in that the housing of the coupling plug, in which the resistor is installed, is transported to the adjustment point without the cover element. After the corresponding laser processing for the adjustment, the cover element was then put on at a further assembly point.
Um zu verhindern, dass Feuchtigkeit, Schmutz oder ähnliches in den Kupp- lungsstecker eindringt und um zu gewährleisten, dass die entsprechendeTo prevent moisture, dirt or the like from penetrating into the coupling plug and to ensure that the corresponding
Atmosphäre innerhalb des Kupplungssteckers herrscht, weist das Deckelelement zusätzliche Dichtungen auf. Ferner sind an dem Gehäuse des Kupplungssteckers Druckausgleichselemente angeordnet.If there is an atmosphere inside the coupling plug, the cover element has additional seals. Pressure compensation elements are also arranged on the housing of the coupling plug.
Nachteile des Standes der TechnikDisadvantages of the prior art
Die Dichtungen übernehmen edoch nur dann ihre Funktion des Abdichtens, wenn das Deckelelement n seiner Endlage (Sekundarverriegelung) verrastet ist. Bei dem Transport des Kupplungssteckers zur Abgleichstelle ist das Deckelelement entweder noch vollständig entfernt oder es liegt auf dem Gehäuse des Kupplungssteckers auf, wobei dieses keine Verrastung mit dem Gehäuse eingegangen ist, da das Deckelement zum Abgleichen des Abgleich- elements nochmals entfernt werden muss. Daher besteht insbesondere bei dem Transport des Kupplungssteckers die Gefahr, dass Staub, Schmutz oder Feuchtigkeit in das Gehäuse eindringt und so die Funktion des Kupplungs- Steckers beeinträchtigt werden kann.However, the seals only take on their sealing function when the cover element is locked in its end position (secondary locking). When the coupling plug is transported to the adjustment point, the cover element is either still completely removed or it lies on the housing of the coupling plug, which has not engaged with the housing, since the cover element has to be removed again in order to adjust the adjustment element. Therefore, especially when transporting the coupling plug, there is a risk that dust, dirt or moisture penetrates into the housing and the function of the coupling plug can be impaired.
Aufgabe der ErfindungObject of the invention
Die Aufgabe der Erfindung besteht darin, eine Ausfuhrungsform des Kupp- lungssteckers, der insbesondere für eine planare Breitband-Lambdasonde vorgesehen ist, derart weiterzubilden, dass diese sehr kostengünstig herstellbar ist und durch die Weiterbildung die Nachteile des Standes der Technik vermieden werden. Losung der AufgabeThe object of the invention is to develop an embodiment of the coupling plug, which is provided in particular for a planar broadband lambda probe, in such a way that it can be produced very cost-effectively and the disadvantages of the prior art are avoided by the further development. Solution to the task
Die Losung der Aufgabe besteht darin, dass an dem Deckelelement eine Dichtung vorgesehen st, die von dem Deckelelement wegweisende Dichtlip- pen aufweist, die in der Vorraststellung des Deckelelements eine dichtende Verbindung mit dem Gehäuse eingehen.The solution to the problem is that a seal is provided on the cover element, which has sealing lips which point away from the cover element and which form a sealing connection with the housing when the cover element is in the locked position.
Vorteile der ErfindungAdvantages of the invention
Ein wesentlicher Vorteil der Erfindung besteht darin, dass der hier er- fmdungsgemass vorgeschlagene Kupplungsstecker kleinbauend ausgestaltet ist, da aufgrund der kompakten Bauweise, nämlich das Einlegen von elektrischen Kontakten n einen Grundkorper und die Anordnung des Abgleich- elements ebenfalls in dem Kupplungsstecker, die Aussenmasse des Kupplungssteckers, der vorzugsweise zwischen einem Kabelbaum und einer Lambda-Sonde angeordnet ist, sehr klein sind.An essential advantage of the invention is that the coupling plug proposed here according to the invention is of a small construction, since, due to the compact design, namely the insertion of electrical contacts n a basic body and the arrangement of the balancing element also in the coupling plug, the external dimensions of the Coupling plug, which is preferably arranged between a wire harness and a lambda probe, are very small.
Ferner erweist sich von Vorteil, dass der hier erfmdungsgemass vorliegende Kupplungsstecker nur wenige Bauteile aufweist. Hierdurch ist eine kostengünstige und effiziente Fertigung möglich.It also proves to be advantageous that the coupling plug present here according to the invention has only a few components. This enables inexpensive and efficient production.
Da der Grundkorper vollständig von dem Deckelelement umgeben ist, ist es möglich, mittels Anordnung von Dichtlippen innerhalb des Deckelelements, den Innenraum des Kupplungssteckers abzudichten, so dass dieser insbesondere vor Staub, Schmutz oder Spritzwasser bereits in der Vorraststellung des Deckelements geschützt ist.Since the basic body is completely surrounded by the cover element, it is possible to seal the interior of the coupling plug by arranging sealing lips within the cover element, so that it is protected in particular from dust, dirt or splash water already in the pre-locking position of the cover element.
Zusätzlich unterstutzt dies auch die Verrastung des Deckelelements an dem Grundkorper. Vorzugsweise ist eine Vor- und eine Endverrastung bzw. eine Primär- und eine Sekundarverriegelung vorgesehen. Diese ist derart ausge- staltet, dass das Deckelelement Rastarme aufweist, die sich im geschlossenen Zustand des Deckels an dem Grundkorper des Kupplungssteckers anlegen und dort mit Rastnasen eine Verrastung eingehen. In der Vorraststellung greifen die an der am Deckelelement umlaufenden Dichtung angeordneten Dichtlippen bereits in Ausnehmungen auf Seiten des Gehäuses ein und bilden somit einen Schutz zumindest gegen Staub und Schmutz. Durch ein weiteres Drucken des Deckelelements in Richtung des Gehäuses tritt bei Erreichen der Endlage (Sekundarverriegelung) die im Deckelelement angeordnete umlaufende Dichtung in Funktion und dichtet das Gehäuse gegen über dessen ausserer Umgebung vollständig ab. Vorzugsweise ist die Dichtung derart ausgelegt, dass das Gehäuse in der Endlage des Deckelelements wasserdicht ist. Die Dichtlippen treten in dieser Endlage ausser Funktion und sind nahezu vollständig in der Ausnehmung im Gehäuse untergebracht.In addition, this also supports the latching of the cover element on the basic body. A pre-locking and an end locking or a primary and a secondary locking is preferably provided. This is designed in such a way that the cover element has latching arms which, when the cover is closed, rest on the base body of the coupling plug and engage there with latching lugs. In the pre-latching position, the sealing lips arranged on the seal running around the cover element already engage in recesses on the side of the housing and thus form protection at least against dust and dirt. By pressing the cover element further in the direction of the housing, when the end position (secondary locking) is reached, the circumferential seal arranged in the cover element comes into operation and seals the housing against completely beyond its surroundings. The seal is preferably designed such that the housing is watertight in the end position of the cover element. The sealing lips are inoperative in this end position and are almost completely housed in the recess in the housing.
Ein weiterer Vorteil der Erfindung besteht darin, dass die zuvor genannte Dichtung an dem Deckelelement angespritzt werden kann, so dass diese unverlierbar angeordnet ist.Another advantage of the invention is that the aforementioned seal can be molded onto the cover element so that it is arranged so that it cannot be lost.
Vorteilhafterweise besteht das Deckelelement aus PBT (Polybutylen- terephthalt) oder gleichwertigen Materialien.The cover element advantageously consists of PBT (polybutylene terephthalate) or equivalent materials.
Weitere vorteilhafte Ausgestaltungen gehen aus nachfolgenden Beschreibungen, den Ansprüchen und den Zeichnungen hervor.Further advantageous embodiments emerge from the following descriptions, the claims and the drawings.
Es zeigen:Show it:
Fig. 1 Eine perspektivische Ansicht auf den erfindungsgemassen Kupp- lungsstecker, mit einem Deckelelement in Endlage;1 shows a perspective view of the coupling plug according to the invention, with a cover element in the end position;
Fig. 2 eine perspektivische Ansicht auf den erfindungsgemassen Kupplungsstecker, ohne Deckelelement;2 shows a perspective view of the coupling plug according to the invention, without a cover element;
Fig. 3 einen Längsschnitt durch den Kupplungsstecker gemass Fig. 1;3 shows a longitudinal section through the coupling plug according to FIG. 1;
Fig. 4 eine Detaildarstellung von Fig. 3, wobei die Funktion des Deckelelements zusammen mit Dichtung und Dichtlippen im Schnitt dargestellt ist und das Deckelelement sich in einer Vorraststellung befindet;FIG. 4 shows a detailed illustration of FIG. 3, the function of the cover element together with the seal and sealing lips being shown in section and the cover element being in a pre-locking position;
Fig. 5 eine Detaildarstellung von Fig. 3, wobei die Funktion des Deckelelements zusammen mit Dichtung und Dichtlippen im Schnitt dargestellt ist und das Deckelelement sich n einer Endlage befindet. Beschreibung eines AusfuhrungsbeispielsFig. 5 is a detailed view of Fig. 3, wherein the function of the cover element together with the seal and sealing lips is shown in section and the cover element is in an end position. Description of an exemplary embodiment
Bei dem in den Fig. 1 bis 5 dargestellte Kupplungsstecker 1 handelt es sich um einen solchen Stecker, der aus einem Gehäuse 2 besteht, das sich aus einem Grundkorper 3 und einem Deckelelement 4 zusammensetzt.The coupling plug 1 shown in FIGS. 1 to 5 is such a plug, which consists of a housing 2, which is composed of a basic body 3 and a cover element 4.
Auf dem Grundkorper 3 ist in einer Haltevorrichtung 5 eine Abgleichein- heit 6 angeordnet, die wiederum über elektrische Kontaktelemente 7 mit der über ein Verbmdungselement 8 verbundenen Lambda-Sonde bzw. mit dem über den n den Kupplungsstecker 1 eingefugten und in den Zeichnungen nicht naher dargestellten Stecker n Verbindung steht.On the basic body 3, a balancing unit 6 is arranged in a holding device 5, which in turn is connected via electrical contact elements 7 to the lambda probe connected via a connecting element 8 or to the one inserted via the coupling plug 1 and not shown in detail in the drawings Plug n connection is established.
Die elektrischen Kontaktelemente 7 bestehen aus leiterbahnahnlich geformten Metallstreifen, die im Bereich der Kupplungsmoglichkeit 9 (Fig. 4) des Kupplungssteckers 1 mit ihrer einen Seite enden.The electrical contact elements 7 consist of metal strips shaped like a conductor track, which end with one side in the area of the coupling possibility 9 (FIG. 4) of the coupling plug 1.
Die Abgleichemheit 6 wird über Fuhrungselemente 10, die zum grossten Teil an dem Grundkorper 3 angeordnet sind, gefuhrt und durch die elektrischen Kontaktelemente 7 positionsgerecht gehalten.The alignment unit 6 is guided over guide elements 10, which are largely arranged on the base body 3, and held in the correct position by the electrical contact elements 7.
Das Deckelelement 4 weist auf seiner Innenseite eine umlaufende Dichtung 11 auf, d e im montierten Zustand des Deckelelements 4 mir dem Gehäuse korrespondiert. Zusätzlich sind vom Deckelelement 4 wegweisend an der Dichtung 11 Dichtlippen 12 angeordnet. Diese Dichtlippen 12 verjungen sich zu deren Ende hin. Die Lange der Dichtlippen 12 ist derart bemessen, dass bei aufgesetztem Deckelelement 4 auf dem Gehäuse 2 n der in Fig. 4 dargestellten Vorraststellung diese in Ausnehmungen 13 hineinreichen, so dass e ne Abdichtung des Gehäuses 2 hergestellt wird.The cover element 4 has on its inside a circumferential seal 11, which corresponds to the housing in the assembled state of the cover element 4. In addition, 11 sealing lips 12 are arranged on the seal pointing away from the cover element 4. These sealing lips 12 taper towards the end. The length of the sealing lips 12 is dimensioned such that when the cover element 4 is placed on the housing 2 n in the pre-latching position shown in FIG. 4, these extend into recesses 13, so that a seal of the housing 2 is produced.
Durch Herbeiführung der Endlage des Deckelelements 4, wie es in Fig. 5 dargestellt ist, wird bewirkt, dass die Dichtlippen 12 weiter n die Ausnehmungen 13 gedruckt werden und die eigentliche Abdichtung zwischen der umlaufenden Dichtung 11 und dem Gehäuse 2 herbeigeführt wird.By bringing about the end position of the cover element 4, as shown in FIG. 5, the sealing lips 12 are printed further into the recesses 13 and the actual sealing between the circumferential seal 11 and the housing 2 is brought about.
Vorteilhafterweise bilden Dichtung 11 und Dichtlippen 12 ein emstuckiges Teil und sind unverlierbar an der Innenseite des Deckelelements 4 angespritzt. Vorzugsweise weist der Kupplungsstecker 1 an seinem Umfang Nuten 14 auf, die es erlauben, einen Kupplungsstecker 1 n dafür vorgesehene Halter einzufügen.Advantageously, the seal 11 and the sealing lips 12 form an integral part and are captively molded onto the inside of the cover element 4. The coupling plug 1 preferably has grooves 14 on its circumference, which allow a coupling plug 1 n to be inserted into holders provided for this purpose.
Aufgrund seiner geringen ausseren Masse ist es auch möglich, den Kupplungsstecker m einem Rillenrohr unterzubringen. Due to its small external mass, it is also possible to accommodate the coupling plug in a grooved tube.

Claims

A N S P R Ü C H E EXPECTATIONS
1. Kupplungsstecker (1), insbesondere für eine planare Lambda-Sonde, bestehend aus - einem Gehäuse (2), nämlich einem Grundkorper (3) und einem Dek- kelelement (4) sowie elektrischen Bauteilen, die in das Gehäuse (2) einlegbar und fixierbar sind, und einem Abgleichelement (6) für eine Sonde, insbesondere eine planare Breitband-Lambdasonde, die m dem Kupplungsstecker (1) oder über ein weiteres Kontaktelement ausserhalb des Kupplungssteckers (1) anzubringen ist, wobei das Deckelelement (4) über dem Abgleichelement (6) aufsteckbar ist und eine Primär- (Vorraststellung) und eine mit dem Deckele- ment (4) zusammenwirkende Sekundarverriegelung (Endlage) aufweist, dadurch gekennzeichnet, dass an dem Deckelelement (4) eine Dichtung (11) vorgesehen ist, die von dem Deckelelement (4) wegweisende Dichtlippen (12) aufweist, die in der Vorraststellung des Deckelelements (4) eine dichtende Verbindung mit dem Gehäuse (2) eingehen. 1. Coupling plug (1), in particular for a planar lambda sensor, consisting of - a housing (2), namely a basic body (3) and a cover element (4) and electrical components which can be inserted into the housing (2) and can be fixed, and a balancing element (6) for a probe, in particular a planar broadband lambda probe, which is to be attached to the coupling plug (1) or via a further contact element outside the coupling plug (1), the cover element (4) above the Adjustment element (6) can be plugged on and has a primary (pre-locking position) and a secondary locking (end position) interacting with the cover element (4), characterized in that a seal (11) is provided on the cover element (4) which is provided by the cover element (4) has pioneering sealing lips (12) which form a sealing connection with the housing (2) in the pre-locking position of the cover element (4).
2. Kupplungsstecker nach Anspruch 1, dadurch gekennzeichnet, dass die2. Coupling plug according to claim 1, characterized in that the
Dichtung (11) mit dem Deckelelement (4) fest verbunden ist.Seal (11) is firmly connected to the cover element (4).
3. Kupplungsstecker nach Anspruch 2, dadurch gekennzeichnet, dass die Dichtung (11) an das Deckelelement (4) angespritzt ist.3. Coupling plug according to claim 2, characterized in that the seal (11) is molded onto the cover element (4).
4. Kupplungsstecker nach mindestens einem der vorhergehenden Ansprüchen, dadurch gekennzeichnet, dass die Dichtlippen (12) mit der übrigen Dichtung (11) ein emstuckiges Teil bilden.4. Coupling plug according to at least one of the preceding claims, characterized in that the sealing lips (12) form an integral part with the remaining seal (11).
5. Kupplungsstecker nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass Dichtung (11) und Dichtlippen (12) aus unterschiedlichen Materialien bestehen.5. Coupling plug according to one of claims 1 to 3, characterized in that the seal (11) and sealing lips (12) consist of different materials.
6. Kupplungsstecker nach mindestens einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass m Vorraststellung des Deckelelements (4) die Dichtlippen (12) in eine im Gehäuse (2) vorgesehene Ausnehmung (13) eintauchen und sich an die Wandung der Ausnehmung (13) anlehnen und so das Gehäuse (2) abdichtet.6. Coupling plug according to at least one of the preceding claims, characterized in that m the pre-locking position of the cover element (4) the sealing lips (12) in a housing (2) provided recess (13) and lean against the wall of the recess (13) and so seals the housing (2).
7. Kupplungsstecker nach mindestens einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass in Endlage des Deckelelements (4) die Dichtlippen (12) in der im Gehäuse (2) vorgesehenen Ausnehmung (13) nahezu vollständig aufgenommen werden und die Dichtung (11) selbst das Gehäuse (2) vollständig abdichtet. 7. Coupling plug according to at least one of the preceding claims, characterized in that in the end position of the cover element (4) the sealing lips (12) in the housing (2) provided recess (13) are almost completely received and the seal (11) itself Housing (2) seals completely.
EP02737784A 2001-04-19 2002-04-11 Compact coupler plug, particularly for a planar broadband lambda probe, that is protected from dust when in a pre-locking position Expired - Lifetime EP1382093B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE20106747U DE20106747U1 (en) 2001-04-19 2001-04-19 Small coupling connector, especially for a planar broadband lambda probe with dust protection in a pre-locked position
DE20106747U 2001-04-19
PCT/DE2002/001353 WO2002087026A2 (en) 2001-04-19 2002-04-11 Compact coupler plug, particularly for a planar broadband lambda probe, that is protected from dust when in a pre-locking position

Publications (2)

Publication Number Publication Date
EP1382093A2 true EP1382093A2 (en) 2004-01-21
EP1382093B1 EP1382093B1 (en) 2005-02-09

Family

ID=7955927

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02737784A Expired - Lifetime EP1382093B1 (en) 2001-04-19 2002-04-11 Compact coupler plug, particularly for a planar broadband lambda probe, that is protected from dust when in a pre-locking position

Country Status (5)

Country Link
US (1) US6814616B2 (en)
EP (1) EP1382093B1 (en)
JP (1) JP4523231B2 (en)
DE (2) DE20106747U1 (en)
WO (1) WO2002087026A2 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TW572419U (en) * 2003-03-18 2004-01-11 Delta Electronics Inc Power line securing module for electronic apparatus
JP5307878B2 (en) * 2010-12-17 2013-10-02 日本特殊陶業株式会社 Sensor device
CN107293898A (en) * 2017-07-31 2017-10-24 北京新能源汽车股份有限公司 A kind of fast changing battery connector and electric automobile
CN109980469B (en) * 2019-05-05 2024-05-03 深圳金信诺高新技术股份有限公司 Radio frequency elastic needle connector

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07111413B2 (en) * 1987-08-28 1995-11-29 株式会社日立製作所 Exhaust gas concentration detector
JP2633641B2 (en) * 1988-08-26 1997-07-23 本田技研工業株式会社 Exhaust gas concentration detector
JP2524095Y2 (en) * 1991-04-15 1997-01-29 住友電装株式会社 Cap for high-pressure connections in automotive engines
GB9313283D0 (en) * 1993-06-28 1993-08-11 Amp Gmbh Magnet valve connector
JP2575979Y2 (en) * 1993-07-01 1998-07-02 住友電装株式会社 Sled correction structure for electrical junction box
JP2849896B2 (en) * 1993-11-16 1999-01-27 矢崎総業株式会社 Waterproof connector
GB9405845D0 (en) * 1994-03-24 1994-05-11 Amp Gmbh Connector assembly for lambda probe conductor
JP3948499B2 (en) * 1994-06-01 2007-07-25 矢崎総業株式会社 Connector device
DE19631040A1 (en) * 1996-08-01 1998-02-05 Bosch Gmbh Robert Line connection of two electrical lines
DE29703729U1 (en) 1996-09-11 1997-05-15 Augat Components Gmbh Construction of a lambda module with mating connector
JP2000082527A (en) * 1998-09-08 2000-03-21 Yazaki Corp Waterproof connector
JP2000208200A (en) 1999-01-13 2000-07-28 Yazaki Corp Waterproof connector
JP2000323006A (en) * 1999-05-17 2000-11-24 Sumitomo Wiring Syst Ltd Electrically functional component and installing structure of the same
DE20020373U1 (en) * 2000-12-01 2002-04-04 Bosch Gmbh Robert Harness connector, especially as a planar two-cell limit current probe with molded cover element
DE20020379U1 (en) * 2000-12-01 2002-05-16 Bosch Gmbh Robert Small coupling connector, especially for a planar broadband lambda probe

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO02087026A2 *

Also Published As

Publication number Publication date
DE50202222D1 (en) 2005-03-17
EP1382093B1 (en) 2005-02-09
JP2004519691A (en) 2004-07-02
WO2002087026A2 (en) 2002-10-31
US20030162440A1 (en) 2003-08-28
US6814616B2 (en) 2004-11-09
JP4523231B2 (en) 2010-08-11
WO2002087026A3 (en) 2003-01-03
DE20106747U1 (en) 2002-08-29

Similar Documents

Publication Publication Date Title
DE2504206C3 (en) Electrochemical measuring sensor for the determination of the oxygen content in exhaust gases, in particular in exhaust gases from internal combustion engines
EP1382092B1 (en) Compact coupler plug, particularly for a planar broadband lambda probe, in which single-conductor seals are prevented from being lost
EP0168589A1 (en) Oxygen sensor
DE10235004B4 (en) gas sensor
WO1992008127A1 (en) Gas measurement probe, especially for determining the oxygen content in internal combustion engine exhaust gases
DE3327397A1 (en) GAS DETECTOR
DE3509197C2 (en)
DE3832936A1 (en) GASKET DEVICE FOR AN INSULATED GROUNDED O (DOWN ARROW) 2 (DOWN ARROW) SENSOR
DE3509195A1 (en) OXYGEN SENSOR
DE3327991A1 (en) GAS DETECTOR
EP0781462B1 (en) Measuring device
DE4126378A1 (en) Gas measuring sensor for oxygen content in exhaust gases - has contact portion support and plug counterwall, whose front sides face large sensor surface
DE2702578A1 (en) ELECTROCHEMICAL SENSOR FOR DETERMINING THE OXYGEN CONTENT IN EXHAUST GASES, IN PARTICULAR EXHAUST GASES FROM COMBUSTION ENGINES
EP1382093A2 (en) Compact coupler plug, particularly for a planar broadband lambda probe, that is protected from dust when in a pre-locking position
EP1340292B1 (en) Small coupler plug, especially for a planar wide band lambda probe
EP0858599A1 (en) Gas-permeable connecting lead for a probe
DE10151328A1 (en) Gas sensor
EP1396053B1 (en) Compact coupler plug, particularly for a planar broadband lambda probe, having an integrated secondary locking
DE4034072A1 (en) Gas sensor measuring oxygen@ content in exhaust gases - has contact portion support and plug opposite wall as insulating components parallel to sensor
EP1514331B1 (en) Secondary locking of a plug-in connection on two planes
DE4439898B4 (en) Electrochemical probe and method for its production
EP1251594B1 (en) Connector for a linear lambda sensor having a secondary locking with checking function
DE102013017745A1 (en) Ceramic component with a cermet body
DE102010061888A1 (en) Lambda probe for detecting oxygen content in exhaust gas of motor vehicle, has heating element comprising terminal that is connected with electrode over guard
DE10200052A1 (en) Layer-type sensor element for determining physical characteristics of gas, comprises measurement unit, heating unit, and heater supply lines

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20031119

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

17Q First examination report despatched

Effective date: 20040514

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE FR GB IT

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: GERMAN

REF Corresponds to:

Ref document number: 50202222

Country of ref document: DE

Date of ref document: 20050317

Kind code of ref document: P

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 20050531

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

ET Fr: translation filed
26N No opposition filed

Effective date: 20051110

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20130422

Year of fee payment: 12

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20130523

Year of fee payment: 12

Ref country code: IT

Payment date: 20130424

Year of fee payment: 12

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20140411

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20141231

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20140411

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20140430

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20140411

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20190627

Year of fee payment: 18

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 50202222

Country of ref document: DE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20201103